The small but potent Titan was designed to always be with you and, to that end, comes with a stainless steel split ring that securely attaches to your keys—ensuring it’ll never be out of reach. To activate Titan, simply rotate its head counterclockwise (with head pointing away from you) for low output. Return to off by rotating clockwise, then rotate counterclockwise again, within one second, to unleash all 125 room-filling lumens from Titan’s high-performance LED. Powered by its included AAA NiMH rechargeable battery (charger not included), Titan can generate useful light output for up to 8.5 hours on a single charge, thanks to its sophisticated microprocessor that continuously manages the flow of power. This versatile keychain light can also run off of a readily available AAA alkaline battery for up to 13 hours. AAA lithium batteries offer increased runtimes on low-output setting—up to 17 hours.